SI3454A-B01-IM

Overview

The SI3454A-B01-IM is a quad IEEE 802.3at Power Sourcing Equipment (PSE) controller manufactured by Skyworks Solutions Inc. It supports four independent PoE channels with a maximum power of 30W per port. The device operates within a supply voltage range of 3.3V and functions reliably across an industrial temperature range from -40°C to +85°C. Packaged in a compact 38-QFN (5x7 mm) surface-mount format, it integrates programmable power management features for compliant network infrastructure.

Feature Summary

• Fully programmable quad-port architecture for IEEE 802.3at compliance
• Integrated power management control for individual channel regulation
• Compact surface-mount QFN package design

Applications

• IEEE 802.3at compliant Power Sourcing Equipment (PSE)
• Four-port PoE switch controllers
• Network infrastructure power distribution units

Procurement Notes

Verify component authenticity through authorized Skyworks distributors. Confirm the specific suffix B01-IM matches project requirements. Check current lifecycle status as older variants may be marked Not Recommended for New Designs. Ensure ESD handling protocols are followed during assembly due to the sensitive semiconductor nature of the integrated circuit.

Selection Notes

Select this component when a quad-channel solution is required for 802.3at implementations. Compare pin compatibility and thermal performance against alternative quad-port controllers. Verify that the 38-QFN footprint aligns with existing PCB layout constraints. Ensure the operating temperature range meets the environmental specifications of the target deployment location.

Part Context

This part belongs to the Si3454 family of PoE controllers designed for high-density network applications. It serves as a specialized power management IC within the broader Skyworks portfolio of connectivity solutions. The device enables efficient power delivery over Ethernet cabling while maintaining strict adherence to industry standards for safety and interoperability.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official Skyworks engineering support for validated alternatives or cross-reference options based on specific electrical and mechanical constraints.